JP2678956B2 - Transfer press frame structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a large transfer press in which a crown and a slide are unitized for each process.

[0002]

2. Description of the Related Art Conventionally, a transfer press equipped with a transfer feeder has a plurality of processing stations in a press body, and is constructed so as to carry out processing while sequentially transferring a work to each processing station by the transfer feeder. ing. Further, in recent years, the transfer press is often restricted due to the size increase of the transfer press. Therefore, the following measures are taken such as making each process independent. The transfer press shown in FIG. 1 has a structure in which a crown a and a slide b are independent for each process, and a guide c for guiding the slide b is attached to an upright d. The transfer press shown in FIGS. 2 and 3 has a structure in which the crown a, the slide b, the bed e, and the like are subdivided, and these are assembled using keys and tie bolts. 4 and 5
The transfer press shown in (1) has a structure in which a sub-slide f is provided for each process, and a die height adjustment, an overload safety device, a load detection device, etc. are provided for each process.

[0003]

However, in the transfer press shown in FIG. 1, since the upright d exists between the steps, workability and visibility are poor, and it is necessary to provide an idle station for each upright d. There is a problem that the entire press becomes large and the setup is difficult, and the work position shifts at the idle station, which reduces productivity. In addition, in the transfer press shown in FIGS. 2 and 3, since it is necessary to change the dividing method every time the press specifications change, a lot of man-hours are required for designing and assembling, which leads to an increase in cost, and the serialization and There are problems such as difficulty in standardization. In particular, Japanese Laid-Open Patent Publication No.
Like the transfer press of 157800 publication,
Between a pair of cross girders f laid on the upright, there are multiple
With a fastening bolt g installed horizontally with a round a interposed
In the case where the cross girder f and the crown a are fastened,
Since the length of the blade increases and the rigidity decreases,
If there is a difference in forming load due to
The cross girder f and the crown a roll laterally, and the molding accuracy is reduced.
To prevent this, increase the cross-sectional area of each upright.
Although it is better to make it larger, the larger the cross-sectional area, the larger the upright.
Not only does it weigh too much, which hinders production and transportation, but also
As the cross section of plite increases, each processing station
Since the pitch between them also needs to be large, the total length of the press
There is also a problem that the press becomes large due to the long length. Sa
In addition, in the above publication, the tie rod inserted into the upright is
Since the space between the bed and the cross girder is fastened, a long length
I need irod. But the tie rod is long
When this happens, the molding load extends and slide bottom dead center accuracy increases.
Decrease, resulting in poor molding accuracy and long
Tie rods are heavy and therefore often used in production and transportation.
Problems such as requiring man-hours occur. On the other hand, in the transfer press shown in FIGS. 4 and 5, the installation space of the sub-slide is restricted by the arrangement of the pressurizing points and the assembly tie bolts, which causes many difficulties in designing and manufacturing, and the new sub-slide is required. Since the structure is added, there is a problem that the structure is complicated and the weight of the movable part increases, so that power is wastefully consumed. In addition, since there is a sub-slide guide inside the slide, it is difficult to obtain the accuracy of the sub-slide, and the height of the entire press becomes high, so when installing it in an existing building, etc., it cannot be installed due to height restrictions. There was also. The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide a frame structure of a transfer press which is easy to transport and which enables press molding with high accuracy. is there.

[0004]

In order to achieve the above-mentioned object, the present invention provides at least one bed, a plurality of uprights standing up and down on the bed, and an upper part of these uprights, and Separated and parallel to each other
At least one pair of support beams and the support beams
Mounted on the chamber so that they are orthogonal to these support beams.
And a slide drive mechanism that raises and lowers the slide inside
A plurality of contained crowns and the support beams and clubs
It consists of tie bolts 15 that fasten the
It is a thing.

[0005]

[Function] With the above structure, the support beam is moved up by the height of the support beam.
The length of the light can be shortened, which makes the upright rigid.
As the flexibility increases, the crown is placed on the support beam,
Tie bolts are used to fasten the support beam and crown from above and below
Therefore, with the tie bolt inserted in the upright,
Tie bolt length is shorter than that of fastening the run
it can. Furthermore, a tybo that fastens the support beam and the crown
The shear force due to the molding load does not act on the belt.
Therefore, the tie bolt may break due to excessive shearing force.
There is no.

[0006]

Embodiments FIGS. 6 to 11 show an embodiment of the present invention.
This will be described in detail with reference to the drawings shown in FIG. FIG. 6 is a front view of the press body, FIG. 7 is a side view of the same, FIGS. 9 and 10 are configuration diagrams of a drive system, and FIG. 8 is a detailed view of a slide guide portion. In these figures, 1 is the press body, 2 is the bed of the press body 1,
Reference numeral 3 is an upright standing on the bed 2, and 4 is a support beam of a long box-like structure which is provided on the upright 3 and is spaced apart in the front-rear direction, and which is provided along the work transfer direction. It is divided, and 5 shows a plurality of press units independent for each process.

The bed 2, the uprights 3, the front and rear support beams 4 and the press units 5 are manufactured in a divided state, respectively, and can be transported separately, thereby eliminating restrictions during transportation and at the installation site. The assembling of the above is facilitated. That is, the press unit 5 is composed of the crown 6 and the slide 7, and the slide drive mechanism 8 is housed in the crown 6 independent for each process.

The slide drive mechanism 8 is provided with a pair of drive shafts 8a on the upper part of the crown 6 in a direction parallel to the support beam 4 and spaced apart in the front-rear direction. The drive shafts 8a are divided for each press unit 5. At the time of assembly, the drive shafts 8a of the adjacent press units 5 are connected by a joint (not shown) so as to be integrated. Moreover, each drive shaft 8
A main pinion 8b is attached to a, a main gear 8d attached to an eccentric shaft 8c is meshed with the main pinion 8b, and an eccentric portion of each eccentric shaft (only one is shown in FIG. 10) 8c. Connecting rod 9 on 8e
Is supported at one end. The other end of the connecting rod 9 is connected to the slide 7 via the plunger 9a.

When the press body 1 is assembled by the operation described later, the drive gear 8g is attached to the drive shaft 8a of the press unit 5 located on the most upstream side, and the drive pinion 8h and the idle gear are attached to these drive gears 8g. 8i meshed, drive pinion 8h
Is a flywheel 8j with an internal clutch (not shown)
The slide drive mechanism 8 can be simultaneously driven by rotating the flywheel 8j by the main motor 10 and the brake 11 is attached to the press unit 8 on the downstream side. .

On the other hand, inside the support frame 4 provided at the front and rear of the press body 1, a plurality of slide guides 12 are laid vertically in each step as shown in FIG. Further, the support beam 4 and the bed 2 can be fastened by tie bolts 14 via the upright 3, and the crown 6 of the press unit 5 and the support beam 4 can be fastened by tie bolts 15. There is.

Next, the operation will be described. The bed 2 of the press body 1, the upright 3, the support beam 4 and the press unit 5 are independent of each other, and the support beam 4 arranged in front of and behind the press body 1. Is the press body 1
Has a box-shaped structure over the entire length of. Then, the bed 2, the upright 3, the support beam 4 and the press unit 5 are separately assembled and conveyed to the assembly site,
First install the bed 2 and then the upright 3 on the bed 2.
And the front and rear support beams 4 are assembled on the upright 3, and the bed 2 and the upright 3 and the support beam 4 are fastened with tie bolts 14 as shown in FIGS. 6 and 7.

After that, the press unit 5 is hung and installed from above between the support beams 4 in each step, the crown 6 and the support beams 4 are fastened with tie bolts 15, and the slides 7 are laid on the support beams 4. The clearance is adjusted so that the slide guide 12 is guided. In addition, if the drive shaft 8a of each press unit 5 is connected and unified by a joint,
The main motor 10 side is connected to the drive shaft 8a of the press unit 5 located on the upstream side, and the brake 11 is connected to the drive shaft 8a of the press unit 5 on the downstream side. Brake 1
Of course, 1 may be provided in the press unit 5 on the upstream side.

In FIG. 11, the press unit 5 is arranged for each processing station W ₁ , W _2, ... Of the three-column transfer press, and the rear of the central upright 3 (processing station W).
_{Although the} idle station i is provided between ₁ and W ₂ ), the idle station i can be omitted by disposing the press unit 5 behind the upright 3 as shown in FIG. In this case, when the mold 18 is replaced, the moving bolster 19 is once moved to the downstream side as shown by the arrow and then pulled out from between the uprights 3, so that the mold 18 can be replaced as in the conventional case.

[0014]

As described in detail above, the present invention provides a bed.
Place a pair of support beams on top of the upright upright.
Of the structure in which the crown is mounted on these supporting beams.
Therefore, the length of the upright is shortened by the height of the support beam.
it can. This increases the rigidity of the upright, so each
Even if there is a difference in forming load at the processing station,
Rolling did not occur above the holding beam
As a result, molding accuracy is improved and long uprights are shortened.
Since it can be made easier, transportation becomes easier. Also with a support beam,
A typo between the crowns mounted on these support beams
Since the structure is fastened from the top and bottom with a
The tie bolts inserted in the ply are used to
The length of the tie bolt is shorter than when connecting between the
This allows the die to be used even under an excessive press load.
Since the bolt does not extend much, the bottom dead center of the slide
The accuracy is improved, which results in a product with high molding accuracy.
As the length of the tie bolt becomes shorter,
Since it is lighter, it is manufactured compared to the conventional long tie bolt.
It is also easy to transport and has the effect of lowering the price.
In addition, it is necessary to fasten the support beam and the crown from above and below.
Since the E-bolt receives the forming load in the pulling direction, it
Shear is not applied to the bolt, which allows
It is a press machine that receives severe vibrations and shocks in the vertical direction.
Even if the tie bolts are broken or the fastening accuracy is low,
There is no fear of causing backlash. Moreover, bet
And upright, support beam and crown
It can be sent by a large transfer press.
Even if there is, it is easy to transport.

Further, since the press load can be monitored in each process, it is possible to prevent problems such as damage to the press unit and the mold due to overload, and the influence of deformation during processing affects other processes. Therefore, the molding accuracy can be improved. Furthermore, even if a part of the press unit fails, you can remove the defective press unit,
Since pressing work can be performed by diverting other press units, the decrease in operating rate can be prevented, and the failed press unit can be removed from the support beam and repaired on the floor surface, so repair work at high places Work safety can be achieved by not requiring Moreover, by serializing and standardizing the press unit, the support beam, etc., it is possible to easily deal with the specification change, and there is also an effect that the steps of designing, manufacturing, and installing can be greatly shortened.

[Brief description of the drawings]

FIG. 1 is a front view showing a conventional transfer press.

FIG. 2 is a plan view showing a conventional transfer press.

FIG. 3 is a front view showing a conventional transfer press.

FIG. 4 is a plan view of a conventional transfer press.

FIG. 5 is a front view of a conventional transfer press.

FIG. 6 is a front view of a transfer press according to an embodiment of the present invention.

FIG. 7 is a view as viewed from the direction of arrow A in FIG. 6;

FIG. 8 is a plan view of a slide guide portion of the transfer press according to the embodiment of the present invention.

FIG. 9 is a detailed view of a slide drive mechanism of the transfer press according to the embodiment of the present invention.

FIG. 10 is a detailed view of a slide drive mechanism of the transfer press according to the embodiment of the present invention.

FIG. 11 is a layout view of a transfer press according to an embodiment of the present invention.

FIG. 12 is a layout view showing another layout of the transfer press according to the embodiment of the present invention.

[Explanation of symbols]

1 ... Press main body, 2 ... Bed, 3 ... Upright, 4 ... Support beam, 5 ... Press unit, 6 ... Crown, 7 ... Slide, 8 ... Slide drive mechanism, 12 ... Slide guide.

Claims (1)

(57) [Claims] 1. At least one bed 2, a plurality of uprights standing upright on the bed 2, and an upper part of the uprights 3, which are spaced apart in the front-back direction and parallel to each other.
At least a pair of support beams 4 that are horizontally mounted
On each support beam 4 and
And slide the slide 7 up and down.
A plurality of crowns 6 accommodating a ride drive mechanism 8 and
Fasten the support beam 4 and the crown 6 from above and below
Transformer equipped with tie bolts 15
Fapless frame structure.